PETROGALE LATERALIS, Gowd. Stripe-sided Rock-Wallaby. UPppER HALF OF THE ANIMAL, OF THE SIZE OF LIFE, AND A REDUCED FIGURE IN THE DISTANCE. Tuis is the West Australian representative of the P. penicillata of New South Wales; in size it is somewhat smaller than that animal, but its markings are more strongly defined. In the colony of Swan River, rocky districts alone are the places of its resort. In their dispositions and general economy the P. lateralis and P. penicillata are very similar. I always observed that the furry coat of the forme however, cannot be depicted, but is readily seen when skins r is thicker or more dense than that of the latter; this difference, of the two animals are seen side by side. The reader is referred to the page accompanying the succeeding Plate for a more de- tailed account of this species. yy ma Pe a > on £ iF i GF DO —— aN : ; iy 1 ae f NG GNENENGNS “NGG Generar N% /. yi nN J o “~ f anne Se tot RO ——i ON 1} 43 eC Pe Py oer L